Installing or replacing a bottle trap under a basin is one of the quickest ways to upgrade your bathroom plumbing or eliminate persistent drainage odours. Designed with an internal water-retaining chamber, bottle traps form an essential seal that stops foul sewer gases from entering domestic living spaces. Whether you are updating a cloakroom sink or refitting a main bathroom, achieving a leak-free, professional seal relies on using the proper component sequence and correct compression techniques.
Step 1: Dismantle Outlet Fittings
Unscrew and remove the threaded nut, blue finned rubber seal, and blue spacer from from the outlet of your trap.
Step 2: Prepare Pipe Components
Place the threaded nut over your waste pipe, with the exposed threads facing towards the end of the pipe the trap is connecting to. Then place the spacer on to the waste pipe followed by the finned blue seal. It’s important the smaller end of the seal is facing towards the end of the pipe that is connecting to the trap.
If you are connecting your Polypipe Building Products trap to a piece of metal waste pipe or a non-kitemarked solvent weld or push fit waste pipe, you can remove our unique patented blue Fit-Rite® insertion aid.
| Tip: When installing non-Polypipe traps that have an insertion aid you will need to cut the insertion aid out of the fitting for it work. |
Step 3: Insert Pipe into Outlet
When connecting your trap to your waste pipe it’s important that the waste can be fully inserted into the outlet of the trap. Once this has been done you can then move the blue finned seal along the waste pipe into the trap.
Step 4: Tighten and Test Compression Joint
Once the seal is in place, the threaded nut can be threaded onto the trap, which will create a compression seal between your waste pipe and trap. After the threaded nut has been hand tightened a final ¼ turn is required. A final inspection of the connection is required to make sure the connection has been made by pulling on the pipe and fitting. This may not be suitable in certain applications.
For our most up-to-date installation guidance, check out our downloadable installation guides via our Technical Hub.